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https://jira.codehaus.org/browse/MNG-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul Benedict updated MNG-4539:
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    Fix Version/s:     (was: Issues to be reviewed for 3.x)

> Transactions support
> --------------------
>
>                 Key: MNG-4539
>                 URL: https://jira.codehaus.org/browse/MNG-4539
>             Project: Maven
>          Issue Type: New Feature
>            Reporter: Johannes Schneider
>
> In an ideal world, every action Maven takes had transaction support. 
> Some problems I run into regularly:
> - Deploying/installing a multi module project: 
>    - But one module fails (of course one of the last) and I end up with an 
> inconsistent repository.
>    - Deployment takes ages: Inconsistent repository for a couple of minutes 
> (or hours).
> - Release: 
>    - Tagging of the central source repository and upload of the artifacts are 
> not done synchronously.
>    - If anything fails (typically site generation/deployment), the source and 
> artifacts repositories are inconsistent.
>    - Cleaning up after a failed release is not easy (or not possible --> 
> Subversion).
> Of course a staging repository could solve some of the issues. But I suggest 
> to go one step further:
> Create some sort of transaction support where actions may be added to. Once 
> the transaction is finished, it is commited and all the actions are executed 
> (e.g. uploading to the repository / tagging).
> If one of the actions fails, a rollback is executed.
> I think this should be possible for many cases. Subversion repositories won't 
> support a "perfect" rollback mechanism. But the distributed VCS (e.g. Git) 
> would. 
> Uploading to the repository could support rollback either through cheap 
> delete-on-rollback or better some special handling in relation to repository 
> managers like Nexus. Maybe WebDAV supports transactions?
> --> For many use cases at least some sort of "cheap" transaction support with 
> faked rollback stuff could work. But for other environments (DCVS + Nexus) 
> there could be first class support...



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